28921212

素因数分解:

$2^2\times 3^4\times {\mathrm{23}}^1\times {\mathrm{3881}}^1$

素因数の和:3920

約数の個数: 60

約数和(自身を含む): 78913296

約数和(自身を除く): 49992084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 81, 92, 108, 138, 162, 207, 276, 324, 414, 621, 828, 1242, 1863, 2484, 3726, 3881, 7452, 7762, 11643, 15524, 23286, 34929, 46572, 69858, 89263, 104787, 139716, 178526, 209574, 267789, 314361, 357052, 419148, 535578, 628722, 803367, 1071156, 1257444, 1606734, 2410101, 3213468, 4820202, 7230303, 9640404, 14460606, 28921212]

約数ペア:

[(1, 28921212), (2, 14460606), (3, 9640404), (4, 7230303), (6, 4820202), (9, 3213468), (12, 2410101), (18, 1606734), (23, 1257444), (27, 1071156), (36, 803367), (46, 628722), (54, 535578), (69, 419148), (81, 357052), (92, 314361), (108, 267789), (138, 209574), (162, 178526), (207, 139716), (276, 104787), (324, 89263), (414, 69858), (621, 46572), (828, 34929), (1242, 23286), (1863, 15524), (2484, 11643), (3726, 7762), (3881, 7452)]